Vehicle wheel-rim.



P. B. BOSWORTH.

Patented Mar. 10, 1914.

VEHIGLE WHEEL RIM.

APPLICATION FILED APR. 4, 1913.

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PERCY B. BOSWORT'H, OF AKRON, OHIO.

VEHICLE WHEEL-RIM.

Specification of Letters Patent.

Application filed April 4, 1918.

T 0 all whom, it may concern.

.Be it known that I, Puioy B. Boswon'rn, a citizen of the United States,residing at kron, in the county of Summit and State of Ohio, haveinvented new and useful 1mprovements in Vehicle \lYhecLRims, of whichthe following is a specification.

This'invention relates to improvements in vehicle wheel rims equippedfor carrying elastic tires.

The object of the invention is'to' produce a new and improved rim forvehicle wheels designed to carry elastic tires provided with superiormeans permitting the demounting of the tire-from and replacing it on thewheel.

Briefly, this invention belongs to that class of tirerholding rims knownas demountable and embodies a novel construction by which the tire maybe quickly and fixedly mounted on'the wheel rim and demounted therefromand which will hold the tire securely against independent movement whilemounted on the wheel.

With the foregoing and other objects in view, the invention consists inthe novel, construction, combination and arrangement of partsconstituting the invention to be hereinafter specifically described andillustrated in the accon'ipanying drawing which forms a part hereofwherein is shown the preferred embodiment of the invention, but it is tobe understood that changes, variations and modifications can be resortedto which come within the scope of the matter hereinafter claimed.

The drawing presented a transverse sectional view of so much of the rimportion of a vehicle wheel as will illustrate this invention, alsoshowing a tire mounted thereon andmy improved tire-retaining means inoperative connection, both with the tire and vehicle wheel.

Referring to the drawing the reference numerals l and 2 denoterespectively. the fclly and folly-band ofan ordinary vehicle wheelconstructed in accordance with the well-known standard now adopted bymanufacturers for car wing elastic tires.

Surrounding the folly-hand 2 is a band 3 which is preferably providedwith corrugations or dove-tailed grooves 4: for use in assisting inholding a lire 5 in position thereon. The cross sectional configurationof the tire aside from the portion which is Patented Mar. 10, 1914.Serial N6. 758,847.

secured to the band 3 is immaterial and a further description thereof isbelieved to be unnecessary. The inner face of the hand 3 along one ofits lateral faces is provided with an inclined face 6 and at anotherpoint with an inclined face 7 preferably, although not necessarily,spaced inwardly from the late :11 face 8 of the band 3. The normallyinner face 9 of the baud inclined face 7, by a shoulder 10, for apurpose to hc'later described.

Mounted on the outer face of the fellyband 2 is a broken retaining ringll-providcd with a laterally-projecting wvedgeshaped flange 12 the outerface of which is inclined and with the inner face thereof fashioned torest. on the outer face of the folly band 2. This member vided with anin'wardly-extendlug flange 13 provided with apertures for a purpose tobe later described. On the outer face of the folly-band 2 is a secondbroken ring or annulus 14 the outer face of which is inclined andfashioned to engage the inclined face 7 of the band 3 and with the innerface. thereof cylindrical to seaton the outer face of the band 2. videdat one side with an inwardlyextending lip or flange 15 for a purpose tobe later described. The ring 1-Jt and the outer por tion 12 of themember 11 are approximately wedge haped in cross-section and theirfunction will appear later.

Positioned against the side face of the folly 1 is an annul arly formcdclamping ring 16 provided with an inwardly-extending flange 17 whichrests against the side of the folly and is further provided with anoutwawily-extending portion 18 which is adapted to bear laterallyagainst [he side 8 of the band 3 of the tire. wardly from this portionis a laterally oulwardly-inclined flange [9. The i1'1\'ardly extendingflange .17 ot' the member- 16 is prov'ded with apertures arranged intrans ycrsc registering relation with respect to the apertures in theflange l3 olf the member 1 l. and the telly .1 is also provided with aseries of transverse a crtures. llxtendir-i 'in these registeringapertures are bolts 20 provided with nuts 91 the function of which is tdraw the clamping ring [6 inwardly toward the folly and also at the sametime. to shift the hand or ring 3 of the tire laterally for firmlyseating the tire.

3 is united with the r 11 is also pro- Extending out- In setting up awheel of this description, the member 11 is positioned on the folly band:2 and the tire with the member is seated in the frusto-conically-formedgroove formed by the face 7 with one side thereof resting against theshoulder 10 and the two are then slid laterally onto the felly band 2until the inclined facet of the band 3 rests on the inclined face of theportion 12 of the member 11. During this operation or immediatelythereafter, the member 1% is forced laterally in the direction of themember 11 until the inwardly-extending lip or flange 15 thereof engagesthe side of the felly-band 2. The clamping ring 16 is then positionedand the bolts 20 passed through the apertures in this ring, the follyand the member 11 and the nuts 21 are placed on their threaded ends.

As the nuts 21 are drawn up they tend to force the member 11 inwardlytoward the side of the felly and this movement causes the inclined outerfaces of the portion 12 and ring 14 to engage the inclined faces 6 and 7of the ring 3. At the same time, the lateral movement. of the member 16causes theface 18 thereof to force the ring 3 laterally toward themember 11 causing the inclined faces 6 and 7 of the ring 3 to contractthe members 11 and 1 1 to firmly lock them in position.

The member 14 is prevented from being carried too far laterally by theengagement of the lip or flange 15 with the side edge of the felly-band2 thereby serving to anchor the member 14 securely in position andpermit the inner inclined face 7 of the band 3 to slide'thereon. When itis desired to dismount or remove a rim embodying this invention, thebolts are removed and if the tire-bearing rim is not easily shifted tothe left in the drawing a slight blow .on the face of the ring 8immediately above the member 11 will loosen the engagement bet-ween theparts and as the tire-bearing rim is shifted from its seat on the rimthe shoulder 10 engaging the side face of the member 1% will carry thelatter from its seat on the felly band 2 thereby completely dismountingthe tire.

Among the advantages obtained by the employment of this type of rim isthat the clamping rim 16 engages the side face of the band 3, and notone of the wedge-shaped rings 11 or 14, and hence, its holding qualitieswith respect to the tire are much greater. Further, the lateralinclining of the portion 19 of the clamping ring16 provides a shield forprotecting the heads of the bolts, or nuts, as the case may be,positioned within the space bounded thereby. A still further advantageaccomplished by this construction is the function performed by theshoulder 10 which when the tire is shifted to dismount l the same itcarries with it the brolilen wedgel shaped ring 14: from its seat on theouter face of the band 2.

I claim: I

1. T he combination with a vehicle wheel, of a pair of wedge-shapedrings positioned on the periphery thereof, one of said wedge shapedrings provided with an inwardlyprojecting flange for preventing itslateral movement, a tire-carrying rim provided on its inner face with apair of inclined faces adapted to seat on the inclined'faces of saidwedge-shaped rings, and a clamping ring secured to the side of saidwheel and provided with a portion engaging the side of saidtire-carrying rim for shifting it laterally to cause snug engagementbetween said rim and the outer faces of said wedge-shaped rings.

2. The combination with a vehicle wheel, of a pair -of brokenwedge-shaped rings having inclined outer faces positioned on theperiphery thereof, a tirecarrying rim inclosmg said wheel and providedon its inner face with a pair of inclined faces adapted to co-act withthe inclined outer faces of said wedge-shaped rings, the inner face ofsaid tire-carrying rim further provided with a shoulder adapted toengage one of said rings when said rim is shifted for moving saith ringofi from its seat on said vehicle wheel, and a clampin said vehicle w hcarrying rim for shifting the latter to cause inter-engagement betweenthe inner face of said. rim and the outer faces of said wedgeshapedrings. r a

8. The combination with a vehicle wheel, of a broken wedge-shaped ringadapted to be seated on the periphery of said wheel and provided with anouter inclined face and an inwardly-extending flange provided withapertures, a second broken ring provided with an outer inclined facealso mounted on the periphery of said wheel, said second ring providedwith an inwardly-extending flange engaging the side of said wheel, atire-carrying rim having parallel inclined inner faces adapted to seaton the outer faces of said broken rings, a clamping ring secured to theside of said wheel and engaging the} tire carrying rim for shifting thelatter to Set up interengagemeat between the inclined faces of the rimand broken rings, saidring further provided with apertures, and aplurality of clamping bolts extending through the apertures in saidclamping rings and said broken. ting for laterally shifting the former.

ring secured to the side of? eel and engaging the tire-j" 4c. Thecombination with a vehicle wheel,

of a Zpalir ,of broken wedge-shaped locking rings riountcd on theperipheral portion thereo Qwith the outer inclined faces of said wedge,haped rings extending in the same generluil direction, both of saidwedge-shaped. rings provided with inwardly-extending portions, forengaging said wheel for prel i l l I rec fonsnngly holding eaidtire-carrying rim in 10 position.

In testimony whereof I have hereunto set my hand 1n presence of Lwosubscribing Wit PERCY B. BOSWORTH.

venting their lateral movement, :1 tire-carry ing rim inclosing saidwedge-shaped rings and provided on its inner face with inclined portionsarranged to co-act with said rings,

to said .wheel and engaging said Lire-carrying rim for shifting thesanle'laterully to cause interengagement between its inner face and .reouter faces 0f. aid wedge-shaped rings \Vil'nesses C. E. I IUMrmmY, A.L. McCLIN'rocK.

